Device and method for manufacturing a coil arrangement

ABSTRACT

A device and method for manufacturing a coil arrangement (21) with a matrix support (11), a winding matrix (12) for receiving winding wire turns and at least two holding devices (13, 14) arranged on the matrix support (11) for holding winding wire end regions (26, 27), the winding matrix (12) and the matrix support (11) having a common axis of rotation (23), and the holding devices (13, 14) being arranged at the circumferential edge of the matrix support in such a manner that the winding wire guided by a wire conductor (24) beyond the circumferential edge in the direction of the rotational axis is guided through the holding devices and held therein.

FIELD OF THE INVENTION

The invention relates to a device for manufacturing a coil arrangementwith a matrix support, a winding matrix for receiving winding wire turnsand at least two holding devices arranged on the matrix support forholding winding wire end regions. Furthermore, the invention relates toa method for manufacturing a coil arrangement according to claims 19 and20.

BACKGROUND OF THE INVENTION

A device of the above type is known from WO 91/00603. In the knowndevice the matrix support, which is used for receiving the windingmatrix, is constructed in the manner of a plate, and the holding devicesare arranged to the left and right respectively of the winding matrix inthe plane of the matrix support. In order to form a coil arrangementwith two winding wire end regions, a winding device known as a flyer isfirstly moved along a first translation axis from the first holdingdevice to the winding matrix, and then in order to form the coil windingis rotated about the winding matrix and finally moved again intranslatory fashion from the winding matrix to the second holdingdevice. During the coil winding, the wire conductor is additionallymoved along a second translation axis. At the end of the windingprocedure, a winding wire end region extending radially from the windingmatrix is formed in each case between the holding devices and thewinding matrix. Since the holding devices are arranged in the plane ofthe matrix and either side thereof, only a diametral alignment of thewinding wire end regions is possible using this known device.

On account of the unfavourable diametral alignment of the winding wireend regions extending from the winding matrix, it is necessary prior tothe connection of said winding wire end regions with connection surfacesof a substrate, which can also be constructed as an electronic componentsuch as a chip, to completely reorientate the winding wire end regions.Furthermore, the known device can only be used together with a flyer inorder to manufacture a coil arrangement. In the winding method carriedout using said known device, the winding wire is applied to the windingmatrix by the flyer rotating about the fixed winding matrix. In thisrespect, the winding wire slides through the rotating wire conductor ofthe flyer and is deflected in constantly varying directions in relationto the wire supply direction. This results in dynamic bending stress tothe winding wire, to which torsional stress is added as a result of thehelical winding path on the winding matrix. In all, this results in astressing of the winding wire during the winding procedure which canlead to variations in the wire cross section influencing the coilinductance or can even lead to a tearing of the winding wire.

A device for manufacturing a coil arrangement is known from U.S. Pat.No. 3,989,200 with a matrix support, a winding matrix comprising awinding core for receiving winding wire turns and at least two holdingdevices arranged on the matrix support for holding winding wire endregions, the winding matrix and the matrix support having a common axisof rotation. In the known device, at least one holding device isarranged directly adjacent the winding core on the matrix support, sothat the winding wire end region formed between the holding device andthe coil body is in close contact with the coil body.

OBJECT OF THE INVENTION

It is the object of the invention to provide a device and a method whichallow for an orientation of the winding wire end regions which isfavourable for the subsequent connection of winding wire end regions toconnection surfaces of an electronic component, and the execution of awinding procedure with considerably reduced wire stressing.

SUMMARY OF THE INVENTION

In accordance with the invention, the winding matrix and the matrixsupport have a common axis of rotation. Consequently, a rotationalmovement of the matrix together with the matrix support is possiblerelative to a wire conductor, so that the winding wire is wound onto thewinding matrix during the winding procedure. The associated wirestressing is considerably reduced as compared with the flyer methoddescribed above.

In addition, according to the invention the holding devices are arrangedon the circumferential edge of the matrix support. As a result of thisarrangement, it is possible in order to fix the winding wire end regionsextending from the winding matrix to merely move the wire conductor awayin the direction of the axis of rotation beyond the circumferential edgeof the matrix support. In this respect, only one translatory axis ofmovement of the wire conductor is necessary both for carrying out thewinding procedure, during which the wire conductor is reciprocated intranslatory fashion, and for fixing the winding wire end regions in theholding devices. Thus, only two axes of movements are required as awhole when using the device according to the invention for manufacturinga coil arrangement, namely the axis of rotation of the matrix supportand the translation axis of the wire conductor.

Finally, a further considerable advantage of the device according to theinvention consists in that, owing to the arrangement of the holdingdevices at the circumferential edge of the matrix support, anyorientation of the winding wire end regions is possible depending on thedistance between the individual holding devices, so that an orientationof the winding wire end regions which is suitable for the subsequentconnection with connection surfaces is already provided during thewinding procedure.

In an advantageous embodiment, the holding devices are provided in amatrix support circumferential element arranged at the circumferentialedge of a matrix support base. In contrast to the case of a one-partconstruction of the matrix support, it is thus possible to combine astandardised matrix support base with a matrix support circumferentialelement which can be individually adapted in its design to the desiredcoil arrangement.

In a further embodiment, at least one holding device can be provided atthe circumferential edge of the matrix support, in a particularlyadvantageous manner at the circumferential edge of a matrix supportcircumferential element arranged on a matrix support base, and at leastone further holding device can be arranged at the circumferential edgeof a counter support.

It is also advantageous if the matrix support and/or the counter supportis/are provided with a winding wire deflecting device, which aligns thewinding wire end regions according to a given orientation in atransition region between a winding core and the holding devices.

According to a further advantageous embodiment of the device, theholding devices are constructed in such a manner that they are actuatedby the wire conductor. In this manner, a correct timing of the holdingfunction undertaken by the holding devices is ensured in each case, sothat the holding function is provided after the passage or the wireconductor through the holding devices and not before, which could resultin the passage of the wire conductor being blocked.

In a preferred embodiment of the holding devices, the latter areprovided with clamping elements, which by overcoming an elasticrestoring force can be moved apart by the wire conductor to allow forthe passage of the winding wire. In addition to a secure clampingfunction, holding devices constructed in this manner also guarantee ahigh degree of operational reliability on account of their simpledesign.

A further possibility for the design of the holding devices consists inan active design in contrast to the above-described passive holdingdevices which are actuated by the wire conductor. Thus, the holdingdevices can also be pneumatically operated. An active design of theholding devices offers the advantage that there is no componentstressing of the wire conductor and the latter is only used as afunction of its position relative to the holding device in order totrigger an opening or closing signal for the holding device.

It has proved to be particularly expedient if a cutting device isassociated with at least the holding device which is used for receivingthe winding wire end region extending away from the winding matrix. Thearrangement of a cutting device allows for the continuous winding of anynumber of coil arrangements on matrix supports arranged in succession,without the formation of wire bridges, which could result in undesirablewire wastage during a subsequent separation of the individual coilarrangements.

The advantageous design of the cutting device on the holding device perse makes it possible to use the movement carried out by the holdingdevice for effecting the holding function in order to simultaneously cutthe winding wire. This dispenses with the need for separate operatingmembers for actuating the cutting device.

In a special embodiment, the matrix support circumferential element canbe designed so as to be removable from the matrix support base. Thisallows for two quite substantial advantages. Firstly, the design of thematrix support circumferential element as removable from the matrixsupport base makes it possible to remove the finished coil arrangementfrom the matrix support base together with the matrix supportcircumferential element, the winding wire end regions being held in theholding devices arranged in the matrix support base circumferentialelement. Thus, the matrix support circumferential element acts as a sortof assembly frame, which allows the orientation of the winding wire endregions to be maintained during a subsequent application of said windingwire end regions to connection surfaces of an electronic component.

Secondly, the removable design of the matrix support circumferentialelement allows for the advantageous possibility of a simple replacementof the holding devices in respect of their relative arrangement andnumber. Thus, it is possible in one case, for example, to provide amatrix support circumferential element with two holding devices, whichare arranged relative to one another in such a manner that the windingwire end regions of the coil arrangement extend parallel to one another.In another case, three holding devices can be provided, to allow for acoil arrangement with central tapping, for example.

If a device for the positioning accommodation of an electronic componentprovided with at least one connection surface is associated with thewinding matrix or the matrix support in such a manner that an overlapregion is formed between the connection surface and at least one windingwire end region when a component is arranged in the device, then aconnection between the winding wire end regions and the connectionsurfaces of the component, such as a chip, can be carried outimmediately following the actual winding procedure, so that the devicecan be particularly advantageously used to manufacture a transponder.Any type of welding process can be selected for the connection betweenthe winding wire and the connection surfaces. Apart from the use ofconventional welding methods such as thermocompressive, thermosonic orultrasonic welding, a laser welding method has proved particularlyadvantageous, in which laser energy is applied to the connection sitevia a photoconductive fibre and a deformation of the bond formed bybonding wire is effected by pressure of the photoconductive fibre.

The winding matrix, which is used together with the matrix support,preferably comprises two disk-shaped side elements, which are detachablyconnected to a winding core. For the side elements, it has provedexpedient in all cases for these to be made of temperature-stableplastics material, for example polytetrafluorethylene (PTFE), so that athermal fixing of a coil winding made of enamelled winding wire can becarried out, without the side elements adhering to the coil winding. Thewinding matrix can also be formed solely by a winding core. The windingmatrix can remain as a coil core in the winding coil following thewinding procedure and can be made of plastics material or a ferritecore, for example.

The embodiment according to claim 14 offers the advantage of integratingan electronic component or an assembly in the winding coil.

Claims 16 and 17 relate to an advantageous combination of the windingmatrix with a gripping and transporting device; both in the event thatthe winding coil is handled as an assembly unit together with a matrixsupport circumferential element, and in the event that the winding coilis handled directly whilst maintaining the relative position of thewinding wire end regions.

The device according to the invention is particularly suitable for massmanufacture. In this respect, an arrangement is particularlyadvantageous in which a plurality of matrix supports are arranged withradially aligned axes of rotation on a common turntable, so that with awire conductor displaceable radial to the axis of rotation of theturntable and with suitable turntable movement timing the matrix coresassociated with the individual matrix supports can be continuously woundto form coil arrangements.

According to a first alternative, the method according to the inventionfor manufacturing a coil arrangement with a winding coil arranged on asubstrate comprises the following method steps:

The manufacture of a winding coil on a winding device according to oneor more of claims 1 to 18 with winding wire end regions which arealigned in their orientation relative to a coil body and are fixed inholding devices of a matrix support circumferential element;

The grasping and removal of an assembly unit formed by the matrixsupport circumferential element and the At winding coil from the windingdevice by means of a gripping and transporting device whilst maintainingthe relative position of the winding wire end regions relative to thewinding coil;

The application of the winding coil to the substrate whilst maintainingthe relative position of the winding wire end regions relative to thewinding coil, connection of the winding wire end regions to connectionsurfaces of the substrate and release of the winding wire end regionsfrom the holding devices, preferably by cutting the winding wire endregions.

According to a further alternative, the method according to theinvention for manufacturing a coil arrangement with a winding coilarranged on a substrate comprises the following method steps:

The manufacture of a winding coil on a winding device according to oneor more of claims 1 to 18 with winding wire end regions which arealigned in their orientation relative to a coil body and are fixed inholding devices of a matrix support and/or counter support;

The grasping of the coil body and the winding wire end regions using agripping and transporting device whilst maintaining the relativeposition of the winding wire end regions relative to the winding coiland release of the winding wire end regions from the holding devices,preferably by cutting the winding wire end regions;

The removal of the coil body and the winding wire end regions from thewinding device using the gripping and transporting device whilstmaintaining the relative position of the winding wire end regionsrelative to the winding coil;

The application of the winding coil to the substrate whilst maintainingthe relative position of the winding wire end regions relative to thewinding coil, connection of the winding wire end regions to connectionsurfaces of the substrate.

Embodiments of the device according to the invention are explained infurther detail in the following with the aid of the drawings, in which:

DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side view of a first embodiment of a winding device formanufacturing a winding coil with a radial extension of the winding wireends;

FIG. 2 is a plan view of the device illustrated in FIG. 1;

FIG. 3 is a front view of a further embodiment of a winding device formanufacturing a winding coil with radial extension of the winding wireends;

FIG. 4 is a plan view of the device illustrated in FIG. 3;

FIG. 5 is a front view of a further embodiment of a winding device formanufacturing a winding coil with radial extension of the winding wireend regions;

FIG. 6 is a plan view of the device illustrated in FIG. 5;

FIG. 7 is a section through a further variant of a winding device formanufacturing a winding coil with radial extension of the winding wireends, the device being fitted in a drive device;

FIG. 8 shows the embodiment of the winding device illustrated in FIG. 2in a multiple arrangement on a turntable;

FIG. 9 shows an embodiment of a winding device for manufacturing awinding coil with axial extension of the winding wire ends showing awire deflecting device and a gripping and transporting device;

FIG. 10 shows an embodiment of a winding wire device for manufacturing awinding coil with radial extension of the winding wire ends showing agripping and transporting device;

FIG. 11 shows a further embodiment of a winding coil with radialextension of the winding wire ends and showing a gripping andtransporting device;

FIG. 12 is a schematic illustration of a possible variant of a methodfor manufacturing a coil arrangement with a winding coil arranged on asubstrate.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1 shows a first embodiment of a winding device 10 with a matrixsupport 11, a winding matrix 12 and two holding devices 13, 14, which inthe embodiment illustrated here are arranged diametrally opposite oneanother on the matrix support 11.

The holding devices 13, 14 are arranged at the circumferential edge ofthe matrix support 11, which can be integrally formed, or, as indicatedby the dot-dash lines in FIGS. 1 and 2, can comprise a matrix supportbase 75 with a matrix support circumferential element 76 arrangedthereon for receiving the holding devices 13, 14. The matrix supportcircumferential element 76 can be fixedly connected to the matrixsupport base 75 or can be detachable therefrom.

In the embodiment illustrated in FIG. 1, the matrix support 11 isprovided with a drive shaft journal 15 and is used for receiving thewinding matrix 12 and a counter support 16, which secures the windingmatrix 12 on the matrix support 11.

In the embodiment illustrated in FIG. 1, the winding matrix 12 isconstructed in three parts and comprises a tubular winding core 17 andtwo disk-shaped side plates 18, 19, which are non-rotatably connected tothe winding core 17 and are each arranged at one end of the winding corein such a manner that they form an annular winding chamber 20 in thiscast.

In FIG. 1, a fully formed winding coil 21 made of winding wire 22 isarranged in the winding chamber 20, a wire conductor 24 displaced intranslatory fashion in the direction of the rotational axis 23 of thewinding device 10 being used to form the winding coil 21. For a betterclarification of the winding procedure, the wire conductor 24 is shownin two positions in FIG. 1, the left-hand position showing the wireconductor 24 in a phase during the coil winding and the right-handposition showing the wire conductor 24 following completion of the coilwinding. This position of the wire conductor is also shown in FIG. 2.

At the start of the winding procedure not shown in further detail in itsinitial phase, the holding device 13 is located on the translation axisof the wire conductor 24 (like the holding device 14 in FIG. 2) and thewire conductor 24 is guided from the right through the holding device 13which is constructed identical to the holding device 14 shown in FIG. 2.In this respect, the holding device 13 which comprises two spring limbs25, 26 in this embodiment is expanded and opened by the wire conductor24 constructed as a wire capillary tube, in order to close again afterthe passage of the wire conductor 24 on account of the elastic springrestoring forces. Consequently, the winding wire 22 is clamped with afirst winding wire end region 27 in the holding device 13.

The wire conductor 24 is then reciprocated above the winding matrix 12,as shown by the left-hand position in FIG. 1, in the region of thewinding chamber 20, as indicated by the double arrow 28. The translatorymovement of the wire conductor 24 is superimposed with a rotationalmovement of the matrix support 11 set in rotation following the clampingof the winding wire end region 27 in the holding device 13. The windingmatrix 12 also rotates, so that the winding wire 22 winds onto thewinding core 17 of the winding matrix 12 to form the winding coil 21illustrated in FIG. 1. The rotary movement of the matrix support 11 iscarried out until, after reaching the desired number of turns on thewinding core 17, the second holding device 14 lies in the positionrelative to the wire conductor 24 illustrated in FIGS. 1 and 2. The wireconductor 24 is then moved out of the winding region and through thespring limbs 25, 26 of the holding device 14, so that the winding wireis clamped with a second winding wire end region 29 between the springlimbs 25, 26 after the wire conductor 24 has passed through the holdingdevice 14.

If necessary, the translation axis of the wire conductor can besupplemented by a Further axis, for example if the outer diameter of thewinding matrix is larger than the diameter of the pitch circle on whichthe holding devices are arranged. In this manner, the wire conductor canbe moved not only axial to the rotational axis of the matrix support butalso radial thereto following clamping of the winding wire end region ina holding device, so that the wire conductor can be displaced beyond thecircumferential edge of the winding matrix.

Following clamping in the holding device 14, the winding wire 22 can becut to the right of the holding device 14 in FIG. 2 and the winding coil21 can be removed from the winding matrix 12 after fixing of the coilwinding. To this end, the winding wire end regions 27, 29 can be awithdrawn from the holding devices 13, 14, and the winding matrix 12which is constructed in a number of parts in this embodiment isseparated into its individual parts.

FIG. 3 shows a winding device 30 with a matrix support circumferentialelement 31 modified relative to that in FIGS. 1 and 2 and provided witha total of four holding devices 32, 33, 34 and 35. The four holdingdevices allow for the formation of a winding coil 36 with four windingwire end regions 37, 38, 39, 40, which are arranged diametrally oppositeone another in pairs. It can also be seen from FIG. 3 that with asuitable design of the winding core of the winding matrix 12, in thiscase as an oval winding core 41, any shape of coil can be formed.

FIG. 4 is a plan view of the matrix support circumferential element 31without the winding matrix 12 associated therewith. In this case, theholding devices 32, 33 separated by a material web 42 can be seen, whicheach comprise a spring limb 43, 44, which is screwed to the matrixsupport 31. Various deflections of the spring limb 43 are illustratedfor the left-hand holding device 32, which are brought about bydifferent positions of the wire conductor 24 as it slides through theholding device 32.

FIG. 5 shows a further variant of a matrix support circumferentialelement 45 with two holding devices 46, 47. In order to form arectangular winding coil 48, a correspondingly shaped winding core 49 isprovided. The dimensions of the winding core 49 as well as the thicknessof the winding coil 48 and the distance between the holding devices 46,47 are such that winding wire end regions 50, 51 lying substantiallyparallel to one another are formed. The above-mentioned dimensions canbe adapted to one another in all cases so that a desired relativeposition of the winding wire end regions is always attained as in thecase of the coil shapes described above by way of example. Thus, it ispossible, if a position recorder 52 for an electronic component 53 isprovided in the side plate 19 of the winding matrix 12 for example, toprovide overlap regions for the subsequent connection of the windingwire end regions 50, 51 with connection surfaces 54, 55 of thecomponent.

It is also clear from the illustration according to FIG. 5 how, in caseswhere the matrix support circumferential element 45 is constructed so asto be detachable from the matrix support base, the matrix supportcircumferential element 45 can be used as an assembly frame of anassembly unit formed by the matrix support circumferential element andthe winding coil. If, as shown in FIG. 3, more than two winding wire endregions are provided, the winding coil can be precisely fixed in itsposition in the matrix support circumferential element. A coil arrangedin this manner can be fitted together with the matrix supportcircumferential element onto a contact support, such as a flexiprint, inorder to firstly connect the winding wire end regions to contacts andthen to release the connection with the holding devices. Instead ofproviding a fixing of the winding coil in the matrix supportcircumferential element by means of the aligned winding wire endregions, it is also possible, as will be described in further detailbelow, to effect a securing by means of a correspondingly designedgripping and transporting device.

FIG. 6, in a plan view of the matrix support circumferential element 45,shows the holding devices 46, 47 in partial section. The holding device46, which clamps the winding wire end region 50 formed at the start ofthe winding procedure, is provided in this case with a clamping element56, which is supported relative to a spring 58 accommodated in a bore57. The bore 57 is simultaneously used for guiding the clamping element56. Instead of providing the spring restoring force of the spring 58 inorder to generate the clamping effect, it is also possible to provide anactive operating member for generating the clamping effect, for examplea pneumatic cylinder, which acts upon the clamping element 56 and forcesthe latter against a material web 77. Instead of effecting the openingof the holding device by the wire conductor 24 which is guided throughand the closure of the holding device by the restoring force of thespring 58, an operating signal could also be used, which acts upon thepneumatic cylinder and is triggered by an inductive proximity switch asa function of the position of the wire conductor relative to the holdingdevice.

In the illustrated embodiment, the further holding device 47 is alsoprovided with springs 58 for generating the clamping effect. In contrastto the holding device 46, the holding device 47 is provided with aclamping element 59, which in addition to a clamping edge 60 comprises acutting edge 61 for cutting the winding wire 22.

As is clear from the illustration of the wire conductor 24 during itspassage through the holding device 47, the cutting function is carriedout when the wire conductor 24 leaves the region of the holding device47 after completion of the coil 48. As a result of an increasinginclined position of the clamping element 59 as the wire conductor 24approaches the end of the clamping element 59 remote from the coil 48, aclamping of the winding wire 22 is firstly effected by the clamping edge60. When the wire conductor 24 leaves the region of the holding device47, the cutting edge 61, as a result of the spring force of the rearspring 58, snaps against an abutment face 78 of the matrix supportcircumferential element 45, so that the cutting of the winding wire 22is effected. The length of the excess wire projecting from wireconductor 24 following cutting is defined by the distance 1 of thecutting edge 61 from the rear edge of the clamping element 59. Thisdistance is dimensioned in such a manner that the winding wire excessprojecting from the wire conductor 24 is securely held in the firstholding device of the following matrix support for the subsequentwinding of a further coil.

FIG. 7 shows a matrix support 62 arranged in a drive device 80 with amatrix body base 79, which is provided with a matrix bodycircumferential element 63 which is removable from the matrix body base79 and comprises holding devices, not shown in further detail here,which can be arranged as desired. The matrix support circumferentialelement 63 is secured to the matrix support base 79 via aspring-supported pawl device 64. This comprises a locking rod 65 whichis arranged transversely to the rotational axis 23 and behind whichspring-supported pressure bolts 66 engage. The locking rod 65 can bedisplaced together with a spring-supported engaging shaft 67 relative toa drive shaft 68 non-rotationally connected to said engagement shaft 67.

Arranged on the end facing the matrix support 62 is a winding matrix 69with two side plates 70, 71 and a winding core 72. The winding core 72is non-rotatably connected with the engagement shaft 67. Finally, theside plate 70 of the winding matrix 69 remote from the matrix support 62is connected via a coupling element 73 to a support shaft 74 in order toprevent an overhung mount of the matrix support 62.

The arrangement illustrated in FIG. 7 allows for a particularly simpleand rapid removal of a fully wound winding coil 81 from the windingdevice. To this end, the winding core 72 is engaged by means of theengaging shaft 67 in the matrix support 62, so that the winding corereleases from the side plate 70 and after release of the winding wireend regions, not shown, by the holding devices of the matrix supportcircumferential element 63, the winding coil 81 drops down from thewinding device.

The multiple arrangement of winding devices 10 on a turntable 82 asshown in FIG. 8 allows for continuous coil manufacture. In this respect,the wire conductor 24 is constantly moved along the same translationaxis 83. After completion of a coil on a winding device 10a illustratedin the upper position in FIG. 8, the turntable 82 is advanced by oneturntable graduation, so that the next coil can be wound on the windingdevice 10b pivoted with its rotational axis onto the translation axis 83of the wire conductor 24.

FIG. 9 shows a winding device 84 for manufacturing a winding coil 85with winding wire end regions 87, 88 extending axially from a coil body86. In the embodiment illustrated here, the winding matrix merelycomprises a winding core 89, which can be constructed as a ferrite core.The winding device comprises a matrix support 90, which rotates aboutthe rotational axis 23 to produce a winding coil, for example in thesame manner as the matrix support illustrated in FIG. 1. The matrixsupport 90 is provided on one side with a flattened section 91 which isaligned axially parallel to the rotational axis in this case and whichextends from a winding core receiving recess 92 to a circumferentialedge 93 of the matrix support 90 constructed in this case as a collar.

Arranged on the flattened section 91 is a wire deflecting device 94 withfour deflecting rods 95, two deflecting rods being associated in eachcase with a winding wire end region 87, 88 and allowing for an alignmentof the winding wire end regions 87, 88 independent of thecircumferential position of holding devices 96, 97 provided in this casewith clamping elements 98, 99 as holding members. An arrangement of theholding devices 96, 97, which could replace the wire deflecting devicein its function with essentially the same alignment of the winding wireend regions, is shown in broken lines in FIG. 9.

The winding procedure for manufacturing the winding coil 85 illustratedin FIG. 9 is effected in the same manner as the winding proceduredescribed with reference to FIG. 1. In cases where the wire deflectingdevice 94 is provided, the required relative movement of the wireconductor, not shown in further detail, can be effected via adouble-axis wire conductor movement or a single-axis wire conductormovement which corresponds in its result and is superimposed with acorresponding rotary angle adjustment of the matrix support 90 relativeto the rotational axis 23.

In addition, FIG. 9 shows a gripping and transporting device 100, whichis provided with three grippers 101, 102, 103, which each comprise twogripping jaws 104 in the illustrated embodiment. In contrast to theillustration in FIG. 9, the gripping function provided by the gripperscan also be effected not by "embracing" gripping but also by a suctiongripper or a magnetic gripper. All that is important is the fact thatthe coil body 86 and the winding wire end regions 87, 88 are grasped ineach case so that they are fixed in their relative position and, withoutchanging this practically "frozen" relative arrangement followinggrasping by the gripping and transporting device 100, can be removed bysaid device from the winding device 84 and transported to an applicationpoint as described in further detail below. In order to ensure theabove-mentioned freezing of the relative position without changes as aresult of the gripping forces exerted by the grippers, in particular thegrippers 102, 103 grasping the winding wire end regions 87, 88 can beconstructed, for example, by a floating arrangement of the gripping jaws104, in such a manner that they automatically align themselves with thealigned winding wire end regions during the gripping procedure.

In cases where the matrix support 90 illustrated in FIG. 9 is notintegrally formed, but the circumferential edge 93 is constructed as adetachable matrix support circumferential element, in a modifiedconfiguration the gripping and transporting device 100 can comprise,instead of the grippers 102, 103 grasping the winding wire end regions87, 88 and in addition to the gripper 101 grasping the coil body 86, agripper 125, which is shown in dot-dash lines in FIG. 9 and grasps thematrix support circumferential element.

FIG. 10 shows a winding coil 105 with a coil body 106 and with radialextension of the winding wire end regions 87, 88, which are axiallyoffset relative to one another. A winding coil 105 of this type can bemanufactured in a winding device 107 similar to the winding device 10illustrated in FIG. 1. In contrast to the winding device 10, the windingmatrix comprises only a winding core 89 as in the preceding embodiment.This is accommodated in winding core receiving recesses 92 between amatrix support 108 and a counter support 109. In this case, the matrixsupport 108 is integrally formed, but can also be formed by a matrixsupport base with a matrix support circumferential element arrangedthereon. Similar to the embodiment illustrated in FIG. 1, the windingwire end regions 87, 88 are received in holding devices 110, 111,although the holding device 110 is provided on the matrix support 108and the holding device 111 on the counter support 109. As an alternativeto the counter support 109, which rotates together with the matrixsupport 108 during the winding procedure, a stationary support, notillustrated in further detail, can be provided with the holding device111.

The matrix support 108 and counter support 109 are provided on theiropposing surfaces with at least one gripping duct 112, 113 in each case,which allow for the access of grippers 114, 115 of a gripping andtransporting device 116, already described in detail in respect of itsfunction with reference to FIG. 9, to the aligned winding wire endregions 87, 88. In order to prevent the formation of a mass imbalanceduring rotation of the winding device 107, balancing ducts 117, 118corresponding to the gripping ducts are provided symmetrical to therotational axis 23.

As a further embodiment, FIG. 11 shows an annular winding coil 119,which is constructed as an air coil and can also be manufactured usingthe winding device 107 illustrated in FIG. 10, in an arrangement of thematrix support 108 and counter support 109 offset through 180° relativeto one another in relation to the rotational axis 23. FIG. 11 also showsa corresponding configuration of a gripping and transporting device 120.

FIG. 12 shows the manufacture of a coil arrangement 121 by way ofexample of the manufacture and subsequent application of the windingcoil 85 manufactured in the winding device 84. The grasping of thewinding coil 85 by means of the gripping and transporting device 100 hasalready been explained in detail with reference to FIG. 9. The removalof the winding coil 85 together with the winding wire end regions 87, 88unchanged in their relative position to one another and to the windingcoil 85 is effected after their release from the holding devices 96, 97.The release can be effected by means of an opening of the holdingdevices in the case of active holding devices, or by means of a cuttingdevice not shown in detail, which cuts the winding wire end regions 87,88. In the case of an arrangement of the holding devices on a matrixsupport circumferential element, the latter can be removed together withthe winding wire end regions 87, 88 by the gripping and transportingdevice 100.

The gripping and transporting device 100 transports the winding coil 85to a substrate 122, to which the winding coil 85 is to be applied. Thissubstrate can be a lead frame, for example, provided with connectionsurfaces 123, 124. It could also be a chip, whose connection surfacesare to be contacted with the winding wire end regions of the windingcoil 85.

In the embodiment illustrated in FIG. 12, the winding coil 85 ispositioned with its winding wire end regions above the substrate 122 insuch a manner that an overlap is provided between the connectionsurfaces 123, 124 of the substrate 122 and the winding wire end regions87, 88 for subsequent contacting. In cases where the gripping andtransporting device 100 is provided with a connection device, not shownin further detail here, for example a thermode or a laser connectingdevice provided with a photoconductive fibre, the contacting can also beeffected immediately with the gripping and transporting device 100 inthe position illustrated in FIG. 12.

We claim:
 1. A device for manufacturing a coil arrangement onto a matrixsupport comprising:a winding matrix with a winding core for receivingwinding wire turns, the winding matrix and the matrix support having acommon axis of rotation; at least two holding devices for holding thewire away from the winding matrix, the holding devices being arranged ata circumferential edge of the matrix support; a reciprocating wireconductor for guiding the wire on a path between a matrix positionadjacent to the winding matrix and a remote position away from thewinding matrix, the wire conductor passing through the holding devices.2. The device according to claim 1, wherein the at least two holdingdevices are actuatable and the reciprocating wire conductor is designedto actuate at least two holding devices.
 3. The device according toclaim 2, wherein the at least two holding devices comprise two springelements arranged such as to clamp the wire when actuated by the passingthrough wire conductor.
 4. The device according to claim 1, wherein thetwo holding devices comprise actuating means for holding the wire. 5.The device according to claim 4, wherein the actuating means arepneumatic means.
 6. The device according to claim 1, further comprisinga cutting device associated with at least one holding device for cuttingthe wire.
 7. The device according to claim 6, wherein the cutting deviceis arranged such that the cutting of the wire is effected upon the wireconductor passing through at least one holding device.
 8. The deviceaccording to claim 1, wherein the winding matrix comprises the windingcore and two disk-shaped side elements, the two disk-shaped sideelements being detachable from the winding core.
 9. The device formanufacturing a plurality of coil arrangements onto matrix supports,each matrix support comprising:a winding matrix with a winding core forreceiving winding wire turns, the winding matrix and the matrix supporthaving a common axis of rotation; at least two holding devices forholding the wire away from the winding matrix, the holding devices beingarranged at a circumferential edge of the matrix support, wherein eachof the matrix supports is radially aligned on a common turntable; and areciprocating wire conductor for guiding the wire on a path between amatrix position adjacent to the winding matrix and a remote positionaway from the winding matrix passing through the holding devices, thewire conductor being movable radially to the rotational axis of theturntable correspondingly timed with a turntable movement such as towind winding cores associated with the individual matrix supports inorder to form coil arrangements.